CN201331312Y - Vernier caliper capable of being adjusted to zero - Google Patents
Vernier caliper capable of being adjusted to zero Download PDFInfo
- Publication number
- CN201331312Y CN201331312Y CNU2008201684323U CN200820168432U CN201331312Y CN 201331312 Y CN201331312 Y CN 201331312Y CN U2008201684323 U CNU2008201684323 U CN U2008201684323U CN 200820168432 U CN200820168432 U CN 200820168432U CN 201331312 Y CN201331312 Y CN 201331312Y
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- vernier
- zero
- registration
- chi
- screw mandrel
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
A vernier caliper capable of being adjusted to zero belongs to the field of measurement tools. The vernier caliper comprises a main scale, a vernier, an inner measurement claw, an outer measurement claw, a depth gauge, a retaining screw, a zeroing knob and a zeroing screw rod. When a zero graduation of the main scale can not be aligned with that of the vernier due to the abrasion of the caliper, two zero graduations can be aligned through adjusting the zeroing knob. The zero graduations can be adjusted to be aligned before the measurement, so that an operator needs not to do calculation to get a true value of each measurement result due to the inaccurate zero graduation. The utility model has the advantages of simple use and convenient data processing.
Description
Technical field
The utility model is a length measuring instrument, belongs to the survey instrument field.
Background technology
Vernier caliper is the dimensional measuring instrument of industrial measurement exact instrument commonly used.It adds the vernier that an energy slides on blade on the basis of common ruler, thereby improve the precision of measuring.Blade and vernier all have measuring jaw, and the width that measuring claw can measuring flume in utilizing and the internal diameter of pipe utilize the external pelivimetry pawl can measure the thickness of part and the external diameter of pipe.Pit gauge and vernier scale connect together, and can survey the degree of depth of groove and tube.Purposes is very extensive, and very convenient.
Along with the wearing and tearing of using, cause the zero graduation of main scale and the zero graduation of vernier to misplace, therefore, each use all will be measured zero reading earlier, be called the modified value at zero point, to add on the numerical value that vernier caliper shows all during calculating that the zero point modified value, must be by calculating the measured value that just can draw measured object after therefore measuring as measured value.The data processing inconvenience, and probably when data processing, omit modified value and make the measured value mistake at zero point.It is inaccurate to reach needed result or result, may cause whole the failure of an experiment.
Summary of the invention
Because omit and calculate the zero point modified value and cause measured value inaccurate and reduce the trouble of data processing, is a brand-new combination, easily school zero vernier caliper but the utility model offers people in order to prevent when using vernier caliper to carry out object measured.
The technical scheme that the utility model adopted is: the registration chi and the vernier of vernier are separated, on the registration chi of vernier, add the preceding paragraph screw mandrel, put a hollow nut relative with the screw thread of screw mandrel on screw mandrel, be school zero knob, nut is limited in the square hole of vernier.It is mobile with the registration chi of vernier to drive screw mandrel by the slip nut, thereby can be under the situation of main scale zero graduation and vernier zero graduation dislocation make main scale zero graduation and vernier zero graduation from newly aliging from the registration chi of new adjusting vernier, making the zero point modified value is zero, guarantees that the registration value of vernier caliper is the measured value of measured object.But whole school zero vernier caliper is made up of vernier, vernier registration chi, pit gauge, school zero screw mandrel, school zero knob, dovetail groove and trapezoidal prominent buckle etc.Vernier is divided into registration chi and the vernier main part two parts that are connected with screw mandrel, be with on the screw mandrel and relative hollow nut, be school zero knob, nut is limited in the square hole of vernier, the rolling nut drives screw mandrel and takes place and the relatively moving of vernier main part with the registration chi of vernier, regulates the vernier zero graduation and aligns with the main scale zero graduation.
Vernier is made up of vernier registration chi, vernier main part, screw mandrel, and vernier registration chi links to each other with screw mandrel, and vernier registration chi is stuck in the dovetail groove of vernier main part and can moves along dovetail groove.Vernier registration chi links to each other with a screw mandrel, thereby the position of registration chi on vernier that can change vernier by the nut of regulating on the screw mandrel is unique design of the present utility model.Vernier registration chi has three parts: be carved with the reading plate of registration, outstanding trapezoidal protruding the button and screw mandrel.Be carved with scale on the reading plate, can read high-precision registration onboard.Outstanding trapezoidal protruding button can be locked in the registration chi in the dovetail groove on the vernier, guarantees that the registration plate can only slide and do not come off at vernier upper edge dovetail groove.A rectangular opening and a cylindrical hole that traverses of taking back the rectangular recess of buckleing, a dovetail groove, a hollow out is arranged on the vernier, and the rectangular recess of taking back button can be enclosed within vernier on the main scale, and the assurance vernier can move around on the bar shaped main scale and not come off; Trapezoidal protruding button of dovetail groove and vernier registration plate matches; The aperture of the cylindrical hole that traverses is slightly big than the diameter of screw mandrel, and screw mandrel can move around in the hole does not take place significantly to rock; The rectangular opening of hollow out can limit the position that is enclosed within the nut on the screw mandrel.The registration chi of vernier is connected by dovetail groove with the vernier main part, makes the registration chi of vernier can stablize mobile at vernier upper edge dovetail groove.In addition, the outer pitch of screw mandrel is identical with the interior pitch of nut, and the size of this pitch is below a times of precision of this vernier caliper; The external diameter of screw mandrel is identical with the aperture of nut.
The utility model is according to different measuring accuracy requirements, and the registration chi of design vernier has different scales, and as 10 lattice, 20 lattice, 50 lattice etc., making measuring accuracy is 0.1mm, 0.05mm, 0.02mm etc.
The internal thread of described nut requires identical with the externally threaded pitch of described screw mandrel, and the size of this pitch is below a times of precision of this vernier caliper, and the zero graduation position of vernier can be changed in very among a small circle.The internal diameter of nut is identical with the external diameter of screw mandrel.
The length and width of the rectangular opening of described hollow out must be greater than the diameter and the thickness of described nut.
Distinct advantages of the present utility model is: can regulate the zero point modified value is zero, makes convenience of calculation; Can change precision of measurement with the registration plate that changes vernier.Damaged vernier caliper is utilized again, reduce cost, and simple structure, detachably carry out modular repair,
Description of drawings
But Fig. 1 is embodiment 1 school zero a vernier caliper front elevation.
But Fig. 2 is the local figure of school zero vernier caliper
But Fig. 3 is the sectional view at the A-A place of embodiment 2 schools zero vernier caliper.
But Fig. 4 is stuck in the sectional view at B-B place for embodiment 3 schools zero vernier.
Concrete embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment 1: but school zero vernier caliper front elevation, as shown in the figure, mainly form by interior measuring claw (1), external pelivimetry pawl (4), pit gauge (9), fixed screw (2), main scale (3), vernier (5), mobile pulley (6), school zero knob (7), school zero screw mandrel (8) etc.With external pelivimetry pawl (4) closure, observe the zero graduation of vernier and the zero graduation of main scale before measuring,, regulate the position of registration chi on vernier of vernier, make two zero graduation alignment by regulating school zero knob (8) if two scales are unjustified.During measurement, hold the main scale latter half, pushing away mobile pulley (6) with forefinger and opening measuring jaw, measured object is placed on the relevant position, use external pelivimetry pawl (4) when measuring length or external diameter; When measuring internal diameter with interior measuring claw (1); With pit gauge (9), touch mobile pulley (6) and make measuring jaw during the degree of depth of measured hole, read the measured value of measured object then from main scale and vernier near measured object.Because this moment, zero point, modified value was zero, this measured value need not be added the modified value at zero point.
Embodiment 2: A-A sectional view shown in Fig. 1 and Fig. 2.Comprise prominent button (11), rectangle returning groove (12) of dovetail groove (10), the vernier registration chi of main scale (3), pit gauge (9), vernier registration chi (13), vernier main part etc.The prominent button (11) of vernier registration chi being stuck in the dovetail groove (10) of vernier main part to move and not to break away from vernier registration chi (11) along the dovetail groove (10) of vernier main part.Main scale (3) is stuck in and makes main scale (3) move and do not break away from along rectangle returning groove (12) in the rectangle returning groove (12).Row hollow tube in the side of having on the main scale (3) can be stuck in pit gauge (9) the inside and move around and do not break away from and crooked and precision that influence is measured.Main scale (3) is marked with scale, with scale on the registration chi (13) of vernier mutually near making things convenient for reading of registration.
Embodiment 3: B-B sectional view shown in Fig. 1 and Fig. 2.Comprise main scale (3), mobile pulley (6), school zero knob (7), school zero screw mandrel (8), pit gauge (9), vernier registration chi (13) etc.School zero screw mandrel (8) links to each other with vernier registration chi (13).On zero screw mandrel (8) of school the very little screw thread of pitch is arranged, school zero knob (7) is a hollow nut, and internal thread is corresponding with the screw thread of school zero screw mandrel (8).When zero knob (7) of slip school, to cause the relative motion of school zero screw mandrel (8), is null displacement because zero knob (7) is limited in the square hole of vernier with relative vernier, so cause the relative displacement of school zero screw mandrel (8) and vernier registration chi (13) and vernier, thereby the zero graduation of regulating vernier aligns with the zero graduation of main scale.
But the utlity model has school zero power energy, the modified value at zero point that makes each measurement is zero, guarantees that the registration on the vernier caliper is measured value, makes data processing quite convenient.
Claims (4)
1. but school zero vernier caliper, comprise vernier, vernier registration chi, pit gauge, school zero screw mandrel, school zero knob, dovetail groove and trapezoidal prominent buckle etc., it is characterized in that: vernier is divided into registration chi and the vernier main part two parts that are connected with screw mandrel, be with on the screw mandrel and relative hollow nut, be school zero knob, nut is limited in the square hole of vernier, and the rolling nut drives screw mandrel and takes place and the relatively moving of vernier main part with the registration chi of vernier, regulates the vernier zero graduation and aligns with the main scale zero graduation.
But 2. school as claimed in claim 1 zero vernier caliper, it is characterized in that: vernier is made up of vernier registration chi, vernier main part, screw mandrel, and vernier registration chi links to each other with screw mandrel, and vernier registration chi is stuck in the dovetail groove of vernier main part and also can moves along dovetail groove.
But 3. school as claimed in claim 1 zero vernier caliper, it is characterized in that: the outer pitch of screw mandrel is identical with the interior pitch of nut, and the size of this pitch is below a times of precision of this vernier caliper; The external diameter of screw mandrel is identical with the aperture of nut.
4. but school as claimed in claim 1 zero vernier caliper, it is characterized in that: the registration chi of vernier is connected by dovetail groove with the vernier main part, makes the registration chi of vernier can stablize mobile at vernier upper edge dovetail groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201684323U CN201331312Y (en) | 2008-11-18 | 2008-11-18 | Vernier caliper capable of being adjusted to zero |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201684323U CN201331312Y (en) | 2008-11-18 | 2008-11-18 | Vernier caliper capable of being adjusted to zero |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201331312Y true CN201331312Y (en) | 2009-10-21 |
Family
ID=41224694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201684323U Expired - Fee Related CN201331312Y (en) | 2008-11-18 | 2008-11-18 | Vernier caliper capable of being adjusted to zero |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201331312Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267456A (en) * | 2013-05-17 | 2013-08-28 | 孙士强 | Vernier caliper with division value being 0.1mm |
| CN103837052A (en) * | 2014-03-12 | 2014-06-04 | 天津职业技术师范大学 | Vernier zero-setting device of vernier caliper |
| CN106225620A (en) * | 2016-07-29 | 2016-12-14 | 宜兴市张渚中等专业学校 | Vernier height gauge null setting |
-
2008
- 2008-11-18 CN CNU2008201684323U patent/CN201331312Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267456A (en) * | 2013-05-17 | 2013-08-28 | 孙士强 | Vernier caliper with division value being 0.1mm |
| CN103837052A (en) * | 2014-03-12 | 2014-06-04 | 天津职业技术师范大学 | Vernier zero-setting device of vernier caliper |
| CN103837052B (en) * | 2014-03-12 | 2019-01-08 | 天津职业技术师范大学 | Vernier caliper vernier balancing controls |
| CN106225620A (en) * | 2016-07-29 | 2016-12-14 | 宜兴市张渚中等专业学校 | Vernier height gauge null setting |
| CN106225620B (en) * | 2016-07-29 | 2019-03-19 | 江苏省陶都中等专业学校 | Vernier height gauge null setting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang De Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhang De Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20111118 |